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The file method was already slowed down and somehow I thought I had done
the same for http, but it turns out that I didn't. Giving it the same
delay as file should help in making this test slower and therefore more
likely to successfully test what it is supposed to test.
Git-Dch: Ignore
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We had a very similar method previously for our own private usage, but
with some generalisation we can move this check into the acquire system
proper so that all frontends profit from this compatibility change.
As we are disabling a security feature here a warning is issued and
frontends are advised to consider reworking their download logic if
possible.
Note that this is implemented as an all or nothing situation: We can't
just (not) drop privileges for a subset of the files in a fetcher, so in
case you have to download some files with and some without you need to
use two fetchers.
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Multiple targets downloading the same file is bad™ as it leads us to all
sorts of problems like the acquire system breaking or simply a problem
of which settings to use for them. Beside that this is most likely a
mistake and silently ignoring it doesn't help the user realizing his
mistake…
On the other hand, we have 'duplicates' which are 'created' by how we
create indextargets, so we have to prevent those from being created to
but do not emit a warning for them as this is an implementation detail.
And then, there is the absolute and most likely user mistake: Having the
same target(s) activated in multiple entries.
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xz has pretty much won "the compressor war" and e.g. the Debian archive
doesn't even distribute bz2 anymore in favor of 'xz' and 'gz', so by
changing the default order we have a more realistic --print-uris
behavior as it will always show the first compressor.
In practice this effects repositories without a Release file (very bad,
we don't want to support them anymore anyhow) as xz will be tried before
bz2 now [which is probably not available, but so might be bz2…] AND
repositories which provide both, bz2 and xz (which isn't too common) in
sofar as apt will now download xz instead of bz2.
Users with special needs can stick with bz2 as first compressor tried
with Acquire::CompressionTypes::Order:: "bz2"; (see man apt.conf) – but
users with special needs usually prefer "gz" anyhow, so the realworld
change is expected to be very low.
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Some targets like Contents-udeb are special-needs targets. Shipping the
configuration snippet for them is okay, but they shouldn't be downloaded
by default. Forcing the user to enable targets by uncommenting targets
is wrong and this would still not really solve the problem completely as
even if you want to download some -udebs it will probably not be for all
sources you have enabled, so having the possibility of disabling a
target by default, but giving the user the option to enable it on a
per-source entry basis is better.
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Some additional files like 'Contents' are very big and should therefore
kept compressed on the disk, which apt-file did in the past. It also
implemented pdiff patching of these files by un- and recompressing these
files on-the-fly, with this commit we can do the same – but we can do
this in both pdiff patching styles (client and server merging) and
secured by hashes.
Hashes are in so far slightly complicated as we can't compare the hashes
of the compressed files as we might compress them differently than the
server would (different compressor versions, options, …), so we must
compare the hashes of the uncompressed content.
While this commit has changes in public headers, the classes it changes
are marked as hidden, so nobody can use them directly, which means the
ABI break is internal only.
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Gbp-Dch: ignore
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This could allow an attacker to mark a package as installed in a
remote package index, as long as the package was not listed in
the dpkg status file.
This way, an attacker could force the installation of a package
during a dist-upgrade, by providing two packages in an index,
an older marked as installed, and a newer - apt would "upgrade"
to the newer version.
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Git-Dch: ignore
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This ensures that we can install .deb files that are not the
candidate for a given package.
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While Target{,-Add,-Remove} is available for configuring IndexTargets
already, allow Targets to be mentioned explicitely as yes/no options as
well, so that the Target 'Contents' can be disabled via 'Contents: no'
as well as 'Target-Remove: Contents'.
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First of, the temporary directory we download the changelog to needs to
be owned by _apt, but that also means that we don't need to check if we
could/should drop privs as the download happens to a dedicated tempdir
and only after that it is moved to its final location by a privileged user.
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Reported-By: codespell
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We deal with Conflicts in SmartUnpack in pretty much the same way, but
Breaks weren't handled in SmartConfigure so that the remove was sheduled
after the configuration of the package breaking the to-be-removed.
Closes: 796070
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Git-Dch: Ignore
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Git-Dch: Ignore
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Also add "Debug::Acquire::SrvRecs" debug option and the option
"Acquire::EnableSrvRecods" to allow disabling this lookup.
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Also support vertical tabs, as isspace() does the same.
Closes: #796067
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Thanks: Steve Slangasek for the suggestion
Closes: 695633
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Gbp-Dch: ignore
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Gbp-Dch: ignore
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Gbp-Dch: ignore
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This enables more fine grained control over such exceptions.
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debian/experimental
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Gbp-Dch: ignore
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This should make them work again.
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Thanks: Andre Felipe Machado for initial patch
Closes: 414848
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The rest of the initial patch is not needed or incorrect in our usage.
Big changes for the dselect scripts seem unneeded as well as those are
hardly used by anyone anymore…
[commit message written by commiter]
Closes: 255577
Thanks: David Weinehall for initial patch
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This makes travis-ci able to run our tests again.
Sometimes.
If it doesn't spontaneously fails with internal gcc errors…
Git-Dch: Ignore
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oldlibs used to be in APT::Never-MarkAuto-Sections so that old
transition packages can be removed without causing the then
(autoinstalled) renamed package to be autoremoved. It isn't ideal
through as ideally you want the oldlibs package to be removed after
nothing depends on it anymore regardless of if you have once installed
it by hand or not – and if you had the package talking over (the
dependencies) should carry the manual bit now as they are the real deal
now.
As an added bonus if the package has no dependencies because it is an
oldlibs without a direct replacement you should move away from (like
lib1 and lib2 are currently in the archive, but there will hopefully
only be lib2 in the release) you get a lib1 marked as auto.
If the user still needs the oldlibs package for some reason all he has
to do is mark it as manual once as this move is only performed if a
installed package changes its section from a not-Move-Autobit-Sections
to a Move-Autobit-Sections.
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Having the handling in MarkInstall means that it just effects
installation of the metapackage, but if the dependencies change the new
dependencies aren't protected (and the old dependencies are still
protected for no 'reason'). Having it in MarkDelete means that if a
metapackage is sheduled for removal all its currently installed
dependencies are marked as manual, which helps against both as in this
case there is no new/old and additionally if a user decides the
installation of a metapackage was wrong he can just remove it
explicitely avoid the manual marking entirely.
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Git-Dch: Ignore
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In 50ef3344c3afaaf9943142906b2f976a0337d264 (and similar for other
branches), while 'fixing' the edgecase of a package being in multiple
sections (e.g. moved from libs to oldlibs in newer releases) I
accidently broke the feature itself completely by operating on the
package itself and no longer on its dependencies…
The behaviour isn't ideal in multiple ways, which we are hopefully able
to fix with new ideas as mentioned in the buglog, but until then the
functionality of this "hack" should be restored.
Reported-By: Raphaël Hertzog <hertzog@debian.org>
Tested-By: Adam Conrad <adconrad@ubuntu.com>
Closes: 793360
LP: 1479207
Thanks: Raphaël Hertzog and Adam Conrad for detailed reports and initial patches
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I never understood why there is an extra newline in those messages, so
now is as good time as any to drop them. Lets see if someone complains
with a good reason to keep it…
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Reporting errors from Done() is bad for progress reporting and such, so
factoring this out is a good idea and we start with moving the supposed-
to-be clearsigned file isn't clearsigned out first – improving the error
message in the process as we use the same message for a similar case
(NODATA) as this is what I have to look at with the venue wifi at
DebCamp and the old errormessage doesn't really say anything.
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Now that we can dynamically create dependencies and provides as needed
rather than requiring to know with which architectures we will deal
before running we can allow the listparser to parse all records rather
than skipping records of "unknown" architectures.
This can e.g. happen if a user has foreign architecture packages in his
status file without dpkg knowing about this architecture (or apt
configured in this way).
A sideeffect is that now arch:all packages are (correctly) recorded as
available from any Packages file, not just from the native one – which
has its downsides for the resolver as mixed-arch source packages can
appear in different architectures at different times, but that is the
problem of the resolver and dealing with it in the parser is at best a
hack (and also depends on a helpful repository).
Another sideeffect is that his allows :none packages to appear in
Packages files again as we don't do any kind of checks now, but given
that they aren't really supported (anymore) by anyone we can live with
that.
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Trade deduplication of code for a bunch of new virtuals, so it is
actually visible how the different indexes behave cleaning up the
interface at large in the process.
Git-Dch: Ignore
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Sources are usually defined in sources.list (and co) and are pretty
stable, but once in a while a frontend might want to add an additional
"source" like a local .deb file to install this package (No support for
'real' sources being added this way as this is a multistep process).
We had a hack in place to allow apt-get and apt to pull this of for a
short while now, but other frontends are either left in the cold by this
and/or the code for it looks dirty with FIXMEs plastering it and has on
top of this also some problems (like including these 'volatile' sources
in the srcpkgcache.bin file).
So the biggest part in this commit is actually the rewrite of the cache
generation as it is now potentially a three step process. The biggest
problem with adding support now through is that this makes a bunch of
previously mostly unusable by externs and therefore hidden classes
public, so a bit of further tuneing on this now public API is in order…
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Now that we deal with provides in a more dynamic fashion the last
remaining problem is explicit dependencies like 'Conflicts: foo' which
have to apply to all architectures, but creating them all at the same
time requires us to know all architectures ending up in the cache which
isn't needed to be the same set as all foreign architectures.
The effect is visible already now through as this prevents the creation
of a bunch of virtual packages for arch:all packages and as such also
many dependencies, just not very visible if you don't look at the stats…
Git-Dch Ignore
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Expecting the worst is easy to code, but has its disadvantages e.g.
by creating package structures which otherwise would have never
existed. By creating the provides instead at the time a package
structure is added we are well prepared for the introduction of partial
architectures, massive amounts of M-A:foreign (and :allowed) and co as
far as provides are concerned at least. We have something relatively
similar for dependencies already.
Many tests are added for both M-A states and the code cleaned to
properly support implicit provides for foreign architectures and
architectures we 'just' happen to parse.
Git-Dch: Ignore
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Before MultiArch implicits weren't a thing, so they were hidden by
default by definition. Adding them for MultiArch solved many problems,
but having no reliable way of detecting which dependency (and provides)
is implicit or not causes problems everytime we want to output
dependencies without confusing our observers with unneeded
implementation details.
The really notworthy point here is actually that we keep now a better
record of how a dependency came to be so that we can later reason about
it more easily, but that is hidden so deep down in the library internals
that change is more the problems it solves than the change itself.
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Cache generation needs a way of quickly iterating over the unique potion
of the dependencies to be able to share them. By linking them together
we can reduce the speed penality (~ 80%) with only a small reduction in
saved size (~ 20%).
Git-Dch: Ignore
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DepCache functions are called a lot, so if we can squeeze some drops out
of them for free we should do so. Takes also the opportunity to remove
some whitespace errors from these functions.
Git-Dch: Ignore
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Further abstracting our new ShowList allows to use it for containers of
strings as well giving us the option to implement an or-groups display
for the recommends and suggests lists which is a nice trick given that
it also helps with migrating the last remaining other cases of old
ShowList.
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apt-get is displaying various lists of package names, which until now it
was building as a string before passing it to ShowList, which inserted
linebreaks at fitting points and showed a title if needed, but it never
really understood what it was working with. With the help of C++11 the
new generic knows not only what it works with, but generates the list on
the fly rather than asking for it and potentially discarding parts of
the input (= the non-default verbose display). It also doubles as a test
for how usable the CacheSets are with C++11.
(Not all callers are adapted yet.)
Git-Dch: Ignore
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'files' is a bit too generic as a name for a command usually only used
programmatically (if at all) by developers, so instead of "wasting" this
generic name for this we use "indextargets" which is actually the name
of the datastructure the displayed data is stored in.
Along with this rename the config options are renamed accordingly.
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Redirectors like httpredir.debian.org orchestra the download from
multiple (hopefully close) mirrors while having only a single central
sources.list entry by using redirects. This has the effect that the
progress report always shows the source it started with, not the mirror
it ends up fetching from, which is especially problematic for error
reporting as having a report for a "Hashsum mismatch" for the redirector
URI is next to useless as nobody knows which URI it was really fetched
from (regardless of it coming from a user or via the report script) from
this output alone. You would need to enable debug output and hope for
the same situation to arise again…
We hence reuse the UsedMirror field of the mirror:// method and detect
redirects which change the site and declare this new site as the
UsedMirrror (and adapt the description).
The disadvantage is that there is no obvious mapping anymore (it is
relatively easy to guess through with some experience) from progress
lines to sources.list lines, so error messages need to take care to use
the Target description (rather than current Item description) if they
want to refer to the sources.list entry.
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C++11 adds the 'override' specifier to mark that a method is overriding
a base class method and error out if not. We hide it in the APT_OVERRIDE
macro to ensure that we keep compiling in pre-c++11 standards.
Reported-By: clang-modernize -add-override -override-macros
Git-Dch: Ignore
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